ReX is finally here! There’s no need for a long intro here, you all have waited long enough so let’s dive right into it.
Built-in Terrain3D
Editing terrain is a big part of developing 3D games, and it should be an out-of-the-box feature for any 3D game engine. ReX integrates Terrain3D directly into the engine, allowing game devs to edit terrain right out the gate. No addons or extensions required.
Performance enhancements
While there were tons of changes under the hood made to improve performance, here’s some of the highlights:
- Updated to C++23 and integrated up to AVX2 support
- Caching changes to reduce runtime overhead and improve performance (especially in rendering)
- OOM changes that improved stability
- Other stability changes (crash prevention, null pointer checks, logic corrections, de/serialization fixes, improper binding fixes, etc.)
- A huge amount of changes that culminated in significant frame-rate increases when utilizing CPU, pathfinding, etc.
But what does this actually look like when running a game?
Below is a scene of a survivors type game that one of our testers made, running in Godot 4.5.1 and ReX.
With 150 enemies, the scene is running at 144fps in Godot 4.5.1. That same scene with the same enemy count runs at 240fps in ReX. That’s a pretty noticeable difference.
Where to download ReX
If you’re curious to see how ReX handles your projects, you can go over to the download page and test it for yourself.
Just remember to back up your projects before opening them in ReX.
ReX changes coming to Redot LTS
In case you missed our last blogpost,the changes from ReX will be making their way to Redot LTS. ReX’s spiritual successor, Draconic, will be a brand new engine built from the ground up to fulfill the original vision that our team had for ReX.
We’d like to thank you all for your patience, especially after this recent delay. The team found a bug in our final round of testing last week and wanted to get that fixed before giving you all an official release. We hope you enjoy ReX, and are looking forward to the enhancements it will bring to Redot LTS.
Want to contribute?
If you’d like to help contribute to Redot LTS or Draconic, or would like an internship at Redot Foundation, send an email to [email protected]
If you’d like to help support development, you can go to redotfoundation.org and make a donation. Redot LTS and Draconic are FOSS projects made by passionate devs in their free time, and every donation helps!


